Overall pavement conditions on the Bay Area’s nearly 44,000 lane-miles of local streets and roads landed once again in fair territory last year, with the typical stretch of roadway showing serious wear and likely to require rehabilitation soon. Data released today by the Metropolitan Transportation Commission (MTC) put the region’s 2020 pavement condition index (PCI) score at 67 out of a maximum possible 100 points, as computed on a three-year moving average basis. This marks the fifth consecutive year Bay Area streets and roads have registered an average score of 67 and underscores the continuing challenges faced by cities’ and counties’ public works departments.
PCI scores of 90 or higher are considered “excellent.” These are newly built or resurfaced streets that show little or no distress. Pavement with a PCI score in the 80 to 89 range is considered “very good” and shows only slight or moderate distress, requiring primarily preventive maintenance. The “good” category ranges from 70 to 79, while streets with PCI scores in the “fair” (60-69) range are becoming worn to the point where rehabilitation may be needed to prevent rapid deterioration. Because major repairs cost five to 10 times more than routine maintenance, these streets are at an especially critical stage. Roadways with PCI scores of 50 to 59 are deemed “at-risk,” while those with PCI scores of 25 to 49 are considered “poor.” These roads require major rehabilitation or reconstruction. Pavement with a PCI score below 25 is considered “failed.”
Cupertino tops the list of Bay Area pavement rankings for the 2018-20 period, with an average PCI score of 85. Other cities with three-year PCI scores in the “very good” range include Dublin and Palo Alto (84); Brentwood, Clayton, Orinda and Woodside (81); and Danville, Foster City and unincorporated Solano County (80).
The lowest-ranked pavement in the Bay Area was found in Pacifica, which recorded a PCI score of 42 for 2018-20. The only other jurisdictions with three-year average PCI scores in the “poor” range are Petaluma (44), unincorporated Napa County (45), Sebastopol (48) and Vallejo (49). The three-year moving average PCI score for the nearly 2,700 lane-miles of rural roads in unincorporated Sonoma County last year inched into the “at-risk” range (50) after many years in the “poor” bracket and a PCI score of 49 for the 2017-19 period.
Find where your city ranks – 2020 Pavement Conditions Summary
MTC is the transportation planning, financing and coordinating agency for the nine-county San Francisco Bay Area.